Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
Generally considered as the 3d part of Westphal's incomplete work "Geschichte der alten und mittelalterlichen Musik." Hinrichs quotes the present ed. and also an ed. of 95 p., Breslau, F.E.C. Leuckart, 1866 (Gesch. der ... musik. 3. abth.)